I have the same board as Shave the whales. Great board, super smooth , fast and LIGHT. I bought the regular raptor(2018) and honestly was not thrilled with it, not saying it a bad board, but it felt heavy and dull to me. I was able to switch out board for the carbon version at local shop, I have to see they are completely different IMO.......go carbon..

The 2018 LTD has a new shape, but we kept the most favorite part of the LTD. So, the 2018 has a double concave, but only in the center of the board, which makes it ride similar. What makes the 2018 LTD ride different are:

The use of 45 degree angled carbon fiber weave, which makes the 2018 LTD more flexible. So, if you though the 2017 felt a bit stiff, the 2018 will suit you more.
The double V-tips make the 2018 LTD better for load 'n' pop tricks and this aspect has definately improved. Again, this aspect might not be imprortant for everyone.
The step cap, thinner rails. These help to edge better and get a bit more grip.